Restart the Device in Safe Mode - Samsung Galaxy S® 4
Safe Mode puts your phone in a diagnostic state (returned to default settings) so you can determine if a third-party app is causing your device to freeze/reset / run slow. Our Troubleshooting Assistant can help you with other device issues if you aren't currently using the tool.
An alternate method is available if the device is unresponsive or won't power on.
- With the device powered on, press and hold the Power button (located on the right edge) until the Phone options prompt appears then release.
- Tap and hold Power off until the Restart in Safe Mode prompt appears then release.
- Tap Turn On Safe Mode.
The restart process may take up to 45 seconds to complete.
Upon restart, Safe mode appears in the lower-left of the unlock/home screen.
- With Safe Mode enabled, test device and app functionality. If the previous issue fails to occur, the cause has been isolated to a third-party app and all recently installed or updated apps should be uninstalled.
- Power cycle the device to disable Safe Mode, reinstall then test each app, one at a time, to identify which is causing the problem.